Lies and promises are necessary but not sufficient.
Many have attempted unnatural acts, but Nature has always shown the way.
A moratorium on opportunities, please. I need to recover from the last one.
Unconditional love is a lofty ideal, but unconditional hate is a fact well documented by history.
Reversing a proposition rearranges its terms, but still keeps out new terms.
Jokes are unanswerable objections.